<template>
	<div :class="divClass" class="pagination-container" >
		<el-pagination
			:background="background"
			:current-page.sync="currentPage"
			:page-size.sync="pageSize"
			:layout="layout"
			:page-sizes="pageSizes"
			:total="total"
			v-bind="$attrs"
      :small="small"
      :pager-count="pagerCount"
			@size-change="handleSizeChange"
			@current-change="handleCurrentChange"
		/>
	</div>
</template>

<script>
import { scrollTo } from '@/utils/scroll-to';

export default {
	name: 'Pagination',
	props: {
		total: {
			required: true,
			type: Number
		},
    pagerCount:{
      type: Number,
      default: 7
    },
		theme: {
			type: String,
			default: 'white'
		},
    small: {
    	type: Boolean,
    	default: false
    },
		page: {
			type: Number,
			default: 1
		},
		limit: {
			type: Number,
			default: 20
		},
		pageSizes: {
			type: Array,
			default() {
				return [5, 10, 20, 30, 50];
			}
		},
		layout: {
			type: String,
			default: 'total, sizes, prev, pager, next, jumper'
		},
		background: {
			type: Boolean,
			default: true
		},
		autoScroll: {
			type: Boolean,
			default: true
		},
		hidden: {
			type: Boolean,
			default: false
		}
	},
	computed: {
		divClass(){
			let result = this.theme;
			if(this.hidden){
				result += " hidden";
			}
			return result;
		},
		currentPage: {
			get() {
				return this.page;
			},
			set(val) {
				//这个地方让从0开始
				this.$emit('update:page', val);
			}
		},
		pageSize: {
			get() {
				return this.limit;
			},
			set(val) {
				this.$emit('update:limit', val);
			}
		}
	},
	methods: {
		handleSizeChange(val) {
			this.$emit('pagination', { page: 1, limit: val });
			if (this.autoScroll) {
				scrollTo(0, 800);
			}
		},
		handleCurrentChange(val) {
			this.$emit('pagination', { page: val, limit: this.pageSize });
			if (this.autoScroll) {
				scrollTo(0, 800);
			}
		}
	}
};
</script>

<style scoped lang="scss">
.pagination-container {
	background: #fff;
	padding: 32px 16px;
	margin-top: 16px !important;
}
.pagination-container.hidden {
	display: none;
}
.pagination-container.dark{
	 background: transparent;
	 button{
		 background-color: transparent;
		 color:#FFFFFF;
	 }
}
</style>
